The IDU-the hardware that powers the Primary Flight Display (PFD) and accompanying Multi-Function Displays (MFDs)-is the backbone of the Cobham EFIS system. Each IDU incorporates:
Central Processing Unit (CPU) employing a ruggedized industrial Pentium II 333MMX with 32MB RAM and 4.3GB solid-state hard drive
Large 6.5" full-color, ultra-bright, high-resolution LCD that is sunlight-readable
Brightness adjustment knob (1000:1 ratio) for comfortable viewing under any condition…from direct sunlight to total darkness
Soft-button control (buttons change function according to current display) with tactile differentiation so that buttons to be identified and operated by feel alone
Menu scroll and select knob for fast, one-touch inputs
Rugged, anodized machined 6061-T6 aluminum bezel
Voice warning system with three escalation levels (advisory, caution and warning) for 24 conditions requiring pilot attention. Synchronized with warning flags displayed on LCD screen (green, yellow or red)
Illuminated slip indicator
SmartMedia data card reader for fast, easy software and database updates/upgrades
Digital flight recorder that logs all engine and flight data
The Cobham EFIS IDUs—the main display and computer processing hardware—are incredibly rugged and have passed all FAA-required RTCA DO-160D environmental tests. Each IDU is so strong, you can park an 18-wheel semi on it, yet a single IDU weighs only 4.4 lbs.